fight in washington is gun control. with the final three victims from sandy hook elementary school buried today, the national rifle association has come out to say that the real problem isn't guns but instead violent video games, so, we wanted to know, is there really a connection between virtual violence and real-world violence? abc's neal karlinsky got some answers. >> reporter: thomas pantig and stephan lloyd are typical of many in their generation. good jobs by day, obsessed with a violent, so-called first person shooter called call of duty when they get home. but is this just good fun, or is an entire generation being trained and desensitized to the act of shooting people? >> some people just go crazy. >> reporter: dr. chris ferguson has conducted a series of multiyear studies of 11-year-old to 18-year-olds to find out what violent games do to them. >> there is no evidence that suggest that exposure to violent video game is associated with violent criminal behavior. >> reporter: but dr. victor strasburger says today's video games are more real, more intense than anything that'